KOSO NORTH AMERICA

Multi air filter intake increases airflow, improves filtering efficiency and raises the engine's output performanceHigh-quality foam filter is easy to assemble and disassembleSuitable for long-term...

Ultra-bright LED light is compact and easy to installDOT compliant

Ideal engine part to complete Koso's big bore kitUnique four-valve design increases air flow and performanceProvides more power and torqueFeatures a forged piston, stainless steel 24 mm intake valves...

Replacement gasket kit for Koso 170CC Big Bore Kit Honda -- MSX125 Grom -- (2014, 2015, 2018, 2020, 2016, 2017, 2019); Honda -- Z125M Monkey -- (2020, 2019)

Throttle body manifold gasket for use with OE or aftermarket manifolds Honda -- MSX125 Grom -- (2015, 2014, 2020, 2016, 2019, 2017, 2018, 2013); Honda -- Z125M Monkey -- (2019, 2020, 2021)

Koso North America Hi Flow Oil Pump - Honda Grom Nf640000 Honda -- MSX125 Grom -- (2022, 2024, 2023); Honda -- MSX125 Grom ABS -- (2024, 2022, 2023)

Aluminum washer includedSensor not included

Aluminum washer includedSensor not included

Aluminum washer includedSensor not included

Koso North America Cam Chain Tensioner - Honda Grom/Monkey Mu640000 Honda -- MSX125 Grom ABS -- (2024, 2023, 2022); Honda -- Z125M Monkey ABS -- (2023, 2022, 2024); Honda -- MSX125 Grom -- (2023,...

Cam Chain Tensioner - Honda Grom Mu623100 Honda -- MSX125 Grom -- (2014, 2015, 2020, 2018, 2016, 2017, 2019); Honda -- MSX125 Grom ABS -- (2019, 2018, 2020); Honda -- MSX125 Grom SF -- (2018, 2017)

Optional camshaft kit can be used with stock engine, but delivers improved results when used with 170cc Big Bore kit Honda -- MSX125 Grom -- (2014, 2015, 2018, 2016, 2017, 2019, 2020); Honda -- Z125M...